CHRIS CRAFT COMMANDER FORUM ® .......A photo-intensive technical reference file and ongoing newsletter regarding the original fiberglass Chris-Craft Commander series. This is an independent not-for-profit and non-commercial web site, not affiliated with the Chris Craft Commander Club ~~ or ~~ Chris-Craft Corporation. Our mission here is to "have fun and share information" about the Commander series (and those associated fiberglass boats on the Chris-Craft family tree) for your individual personal use, and by doing so help promote the good name of Chris-Craft, and help preserve, restore, and appreciate Chris-Craft boats. The main reference feature is the ever expanding MASTER INDEX File which contains what we believe to be the world's largest collection of documentation photos and technical information on the Chris-Craft Commander line of boats, (like these original brochure scans, featuring the iconic first 38 Commander styled by Fred Hudson, and many of the great Dick Avery renditions that followed) , (a huge collection of Chris-Craft 427 tuning and specification information), and a few words about how to use the forum.

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Re: 427 intake manifold

March 28 2012 at 4:55 PM

Paul  (Premier Login FEfinaticP)
Forum Owner


Response to 427 intake manifold

The following is from a very informed FE engine guy who I rely on from time to time for good info.


"The 1973-76 390-4V pickup truck engine has the same intake, except it has an EGR boss cast in. Most EGRs are drilled, some are not. A 1973-76 4V intake without the drilled boss, or with the boss plugged, would perform identically to that marine intake."


I do have a spare and I will check the numbers on it this eve just to know what they are and I'll look it over closely to see if I can distinguish any problems. If you need an authentic marine unit I'll sell it for under market value. I just want to be sure it is a good spare before going to the trouble to box, ship, install, and then discover something wrong. I'll check on it tonight and I'll get back, in the meantime if you find one locally that is from a 390 truck (or auto, for that matter as long as it is not a high performance intake) it should fit just fine. The intakes are nothing special on marine motors, they are for torque and not high performance.

Ford did a great job of "parts bin engineering" with the marine motors. They used the royal blocks, and a fine cast iron crankshaft (exception: some or all side oilers may have received steel cranks but in our application, cast iron cranks are more than adequate), generic intakes and heads, a torque cam, generic rods and pistons, and the result was one of the best marine motors ever built.

regards,

Paul

 
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